发明申请
- 专利标题： Aqueous Polymerization of Fluorinated Monomers Using Polymerization Agent Comprising Fluoropolyether Acid or Salt and Hydrocarbon Surfactant
- 专利标题（中）： 使用包含氟聚醚酸或盐和烃表面活性剂的聚合剂的氟化单体的水聚合
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申请号： US11937536申请日： 2007-11-09
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公开(公告)号： US20080114121A1公开(公告)日： 2008-05-15
- 发明人: Paul Douglas Brothers , Subhash Vishnu Gangal
- 申请人： Paul Douglas Brothers , Subhash Vishnu Gangal
- 申请人地址： US DE Wilmington
- 专利权人： E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E. I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人地址： US DE Wilmington
- 主分类号： C08L65/00
- IPC分类号： C08L65/00
摘要：
A process for polymerizing at least one fluorinated monomer in an aqueous medium in the presence of initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer having a fluoropolymers solids content of at least about 10% by weight. The polymerization agent is a combination of fluoropolyether acid or salt thereof and hydrocarbon surfactant. The aqueous medium contains less than about 300 ppm of perfluoroalkane carboxylic acid or salt fluorosurfactants. The process is preferably performed without adding polymer seed prior to polymerization kick-off.
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